Datasheet
R01UH0028EJ0400 Rev.4.00 1
Sep 27, 2010
R01UH0028EJ0400
Rev.4.00
Sep 27, 2010
78K0/Kx2-L
RENESAS MCU
CHAPTER 1 OUTLINE
1.1 Features
{ 78K0 CPU core
{ I/O ports, ROM and RAM capacities
Item
Products
I/O ports
Program Memory
(Flash Memory)
Data Memory (Internal
High-Speed RAM)
78K0/KY2-L (16 pins) 12 (CMOS I/O: 9, CMOS input: 3)
78K0/KA2-L (20 pins) 16 (CMOS I/O: 13, CMOS input: 3)
78K0/KA2-L (25 pins) 21 (CMOS I/O: 18, CMOS input: 3)
78K0/KA2-L (32 pins) 25 (CMOS I/O: 22, CMOS input: 3)
4 KB to 16 KB 384 bytes to 768 bytes
78K0/KB2-L (30 pins) 24 (CMOS I/O: 21, CMOS input: 3)
78K0/KC2-L (40 pins) 34 (CMOS I/O: 29, CMOS input: 5)
78K0/KC2-L (44 pins) 38 (CMOS I/O: 33, CMOS input: 5)
78K0/KC2-L (48 pins) 42 (CMOS I/O: 37, CMOS input: 5)
8 KB to 32 KB 512 bytes to 1 KB
{ Low power consumption (VDD = 3.0 V)
• Internal high-speed oscillation mode: 220
μ
A (TYP.) (at fCPU = 1 MHz operation)
• STOP mode: 0.58
μ
A (TYP.) (at fIL = 30 kHz operation)
• Subsystem clock and HALT mode: 0.98
μ
A (at fSUB = 32.768 kHz operation) ∗ 78K0/KC2-L only
{ Clock
• High-speed system clock … Selected from the following three sources
- Ceramic/crystal oscillator: 1 to 10 MHz
- External clock: 1 to 10 MHz
- Internal high-speed oscillator: 4 MHz ± 2 % (–20 to +70°C), or 8 MHz ± 3 %(–40 to +85°C)
• Low-speed system oscillator 30 kHz ± 10 % … Watchdog timer, timer clock in intermittent operation
• Subsystem clock: Clock to operate the real-time counter mainly (32.768 kHz)
{ Power-on-clear (POC) circuit
{ Low-voltage detector (LVI) (An interrupt/reset (selectable) is generated when the detection voltage is reached))
• Detection voltage: Selectable from sixteen levels between 1.91 and 4.22 V
{ Single-power-supply flash memory
• Flash self programming enabled
• Software protection function: Protected from outside party copying (no flash reading command)
{ Safety function
• Watchdog timer operated by clock independent from CPU
… A hang-up can be detected even if the system clock stops
• Supply voltage drop detectable by LVI
… Appropriate processing can be executed before the supply voltage drops below the operation voltage
• Equipped with option byte function
… Important system operation settings set in hardware
<R>
<R>
<R>
<R>
<R>